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Say good-bye to Kotlin Android Extensions okuzawats YUMEMI.apk #2 2020/11/27 converted to markdown format 2022/05/28 © 2020 okuzawats © 2020 okuzawats

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Who? okuzawats Twitter: okuzawats GitHub: okuzawats Android / Flutter（ ） @ Fuller, Inc. Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats 2 2

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Kotlin 1.4.20-M2 Deprecate Kotlin Android Extensions compiler plugin 3 3 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Kotlin Android Extensions views parcelize 4 4 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Kotlin Android Extensions views (dead) parcelize (dead) 5 5 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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views "not recommended practice" 6 6 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Alternatives findViewById: traditional way ViewBinding: can use existing layout DataBinding: can bind variables in layout file 7 7 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Alternatives findViewById: traditional way ViewBinding: can use existing layout DataBinding: can bind variables in layout file 8 8 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Enable ViewBinding 9 9 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Enable ViewBinding 10 10 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Enable ViewBinding 11 11 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Enable ViewBinding 12 12 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Enable ViewBinding wada811 / ViewBinding-ktx 13 13 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Disable Kotlin Android Extensions (views) 14 14 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Kotlin Android Extensions (parcelize) 15 15 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Kotlin Android Extensions (parcelize) to When update Kotlin 1.4.20-M2 16 16 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Before: After: 17 17 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats

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Reference https://github.com/JetBrains/kotlin/releases/tag/v1.4.20- M2 https://proandroiddev.com/migrating-the-deprecated- kotlin-android-extensions-compiler-plugin-to- viewbinding-d234c691dec7 18 18 Say good-bye to Kotlin Android Extensions Say good-bye to Kotlin Android Extensions © 2020 okuzawats © 2020 okuzawats